fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph

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Maysam Yabandeh c292dc8540 WritePrepared: reduce prepared_mutex_ overhead (#5420) ... Summary: The patch reduces the contention over prepared_mutex_ using these techniques: 1) Move ::RemovePrepared() to be called from the commit callback when we have two write queues. 2) Use two separate mutex for PreparedHeap, one prepared_mutex_ needed for ::RemovePrepared, and one ::push_pop_mutex() needed for ::AddPrepared(). Given that we call ::AddPrepared only from the first write queue and ::RemovePrepared mostly from the 2nd, this will result into each the two write queues not competing with each other over a single mutex. ::RemovePrepared might occasionally need to acquire ::push_pop_mutex() if ::erase() ends up with calling ::pop() 3) Acquire ::push_pop_mutex() on the first callback of the write queue and release it on the last. Pull Request resolved: https://github.com/facebook/rocksdb/pull/5420 Differential Revision: D15741985 Pulled By: maysamyabandeh fbshipit-source-id: 84ce8016007e88bb6e10da5760ba1f0d26347735		6 years ago
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backupable	simplify include directive involving inttypes (#5402)	6 years ago
blob_db	simplify include directive involving inttypes (#5402)	6 years ago
cassandra	Organizing rocksdb/db directory	6 years ago
checkpoint	simplify include directive involving inttypes (#5402)	6 years ago
compaction_filters	Comment out unused variables	7 years ago
convenience	Auto roll logger to enforce options.keep_log_file_num immediately after a new file is created (#5370)	6 years ago
leveldb_options	Change RocksDB License	8 years ago
memory	Organizing rocksdb/db directory	6 years ago
merge_operators	Move some logging related files to logging/ (#5387)	6 years ago
option_change_migration	Avoid double-compacting data in bottom level in manual compactions (#5138)	6 years ago
options	simplify include directive involving inttypes (#5402)	6 years ago
persistent_cache	simplify include directive involving inttypes (#5402)	6 years ago
simulator_cache	Apply modernize-use-override (2nd iteration)	6 years ago
table_properties_collectors	Reduce runtime of compact_on_deletion_collector_test (#4779)	6 years ago
trace	Move util/trace_replay.* to trace_replay/ (#5376)	6 years ago
transactions	WritePrepared: reduce prepared_mutex_ overhead (#5420)	6 years ago
ttl	Make format	6 years ago
write_batch_with_index	Organizing rocksdb/db directory	6 years ago
debug.cc	Organizing rocksdb/db directory	6 years ago
env_librados.cc	Optionally wait on bytes_per_sync to smooth I/O (#5183)	6 years ago
env_librados.md	Add EnvLibrados - RocksDB Env of RADOS (#1222)	9 years ago
env_librados_test.cc	Move test related files under util/ to test_util/ (#5377)	6 years ago
env_mirror.cc	Optionally wait on bytes_per_sync to smooth I/O (#5183)	6 years ago
env_mirror_test.cc	Move test related files under util/ to test_util/ (#5377)	6 years ago
env_timed.cc	Apply modernize-use-override (2nd iteration)	6 years ago
env_timed_test.cc	Move test related files under util/ to test_util/ (#5377)	6 years ago
merge_operators.h	Support StringAppendOperator(delimiter_char) constructor in java-api	7 years ago
object_registry_test.cc	Move test related files under util/ to test_util/ (#5377)	6 years ago
util_merge_operators_test.cc	Move test related files under util/ to test_util/ (#5377)	6 years ago